A recent study found that Jupiter was once twice the size that it is now, making it big enough to swallow up 2,000 Earths.

Astronomers have discovered the strange dance that leads to the creation of rare "double hot Jupiters" in binary star systems that are "just right." ...

If you believe in lucky days, there’s one worth circling on the calendar every year. Dubbed the “Day of Miracles” by ...

Researchers now appreciate that gas planets are more complex than first thought. New findings have implications for our ...

If you looked at the churning clouds near Jupiter’s pole, they appear like ocean currents on Earth — as if you’re looking at ...

Astronomers have calculated that the gas giant Jupiter used to be twice as big as it is now, based on the odd orbits of two of its many moons.

GJ 504 b is an exoplanet orbiting the star GJ 504. This planet is estimated to be three to six times heavier than Jupiter.

Chaotic instabilities occur in hot Jupiter atmospheres as alkali metals heat up as a result of extreme temperature dynamics.